LEMP (also known as LNMP) is a group of open-source software which enable a server to host dynamic websites and web applications. It consists of the Linux operating system, the (E)Nginx web server (which replaces the Apache component of a LAMP stack), the MySQL relational database management system, and the PHP programming language.
How to install Apache, PHP 7.3 and MySQL on CentOS 7.6 (LAMP)
This tutorial shows how to install an Apache web server on CentOS 7 server with PHP (mod_php) and MySQL database. The acronym LAMP is short for Linux, Apache, MySQL, PHP.
This tutorial shows the installation of the latest PHP version 7.3 on CentOS 7.6 Continue reading “How to install Apache, PHP 7.3 and MySQL on CentOS 7.6 (LAMP)”
How to set up master slave replication in MySQL
MySQL replication is a process that enables data from one MySQL database server (the master) to be copied automatically to one or more MySQL database servers (the slaves). Replication is asynchronous by default. Slaves do not need to be connected permanently to receive updates from the master. Depending on the configuration, you can replicate all databases, selected databases, or even selected tables within a database.
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Yubikey SSH authentication
The YubiKey is a hardware authentication device manufactured by Yubico that supports one-time passwords, public-key encryption and authentication, and the Universal 2nd Factor (U2F) and FIDO2 protocols developed by the FIDO Alliance.
How To Upgrade PHP 7.0 to 7.2 in CentOS 7 Linux
In this post I’ll show you how to upgrade PHP 7.0 to 7.2 in CentOS 7 Linux.
How To Upgrade PHP 7.0 to 7.2
For PHP 7.0 I’ve been using the Webtatic repository. This is a third party repository that allows me to install newer versions of PHP in CentOS 7.
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Deploy Sulu with Deployer
Deployer is a cli tool for deployment of any PHP applications, including frameworks such as Laravel, Symfony, Zend Framework and many more. Main concept of Deployer is recipe, a php file containing tasks definitions. Also Deployer comes with bunch of ready to use recipes from community for Slack, etc.
How to disable Let’s Encrypt for the hostname
If you want to replace the certificate for your hostname with a custom certificate but you had enabled Let’s Encrypt, you will need to disable Let’s Encrypt for the hostname first. The following command let’s DirectAdmin know that it does not need to renew the Let’s Encrypt certificate. This is required as DirectAdmin will renew the certificate +/- 60 days after the last renewal, even when the Let’s Encrypt certificate is not installed.
rm -rf /usr/local/directadmin/data/users/user_name/domains/domain_name.lt.san_config rm -rf /usr/local/directadmin/data/users/user_name/domains/domain_name.lt.cert.creation_time
How to create locally trusted SSL certificates in local development environment on Linux with mkcert
A Certificate Authority (CA) is an entity that issues digital certificates. Our goal is to become a certificate authority (CA) like Let’s Encrypt, Verisign etc.. Issue yourself certificates for local development domains!
Proxmox: Shrinking disk of an LVM backed container
LVM, or Logical Volume Management, is a storage device management technology that gives users the power to pool and abstract the physical layout of component storage devices for easier and flexible administration. Utilizing the device mapper Linux kernel framework, the current iteration, LVM2, can be used to gather existing storage devices into groups and allocate logical units from the combined space as needed.
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Find IP Addresses with awk
An Internet Protocol address – or IP address for short – is a series of unique numbers that are assigned to each router or hotspot accessing the internet. The string of numbers is used to tell all the machines apart on the same internet. Much like your house needs a mailing address to send and receive packages or letters, your device – whether it’s a computer, a phone or something else – needs an IP address to send and receive data.
AWK is a special-purpose programming language designed for text processing and typically used as a data extraction and reporting tool. It is a standard feature of most Unix-like operating systems.
IPv4 example:
awk '{match($0,/[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+/); ip = substr($0,RSTART,RLENGTH); print ip}'